水平井井眼清洁定量化监测评价技术

A Quantitative Monitoring and Evaluation Technology for Hole Cleaning of Horizontal Well

舒惠龙 田中兰 付利 杨恒林 杨磊 范玉光

SHU Huilong TIAN Zhonglan FU Li YANG Henglin YANG Lei FAN Yuguang

中国石油勘探开发研究院, 北京 100083 中国石油集团工程技术研究院有限公司, 北京 102206 上荣（天津）科技有限公司, 天津 300308 中国石油塔里木油田分公司, 新疆库尔勒 841000

Research Institute of Petroleum Exploration & Development, Beijing, 100083, China CNPC Engineering Technology R&D Company Limited, Beijing, 102206, China Shangrong (Tianjin) Technology Company Limited, Tianjin, 300308, China PetroChina Tarim Oilfield Company, Korla, Xinjiang, 841000, China

为了监测和评价水平井井眼清洁程度，研制了岩屑返出量监测装置，以准确监测岩屑返出情况。基于岩屑返出量数据和工程录井实时采集的数据，建立了岩屑返出量监测装置在2种工作模式下，倾倒时段漏接岩屑补偿方法与实际返出岩屑体积计算方法；基于岩屑返出率与掉块监测结果，研究形成了水平井井眼清洁定量化监测评价技术。该技术在川南泸州区块多口页岩气水平井进行了应用，实现了监测井段岩屑返出体积与返出率实时准确监测，并多次预警井眼清洁异常情况，保证了水平段的顺利钻进。水平井井眼清洁定量化监测评价技术为水平井井眼清洁程度监测及卡钻复杂风险预防提供了一种新的技术手段。

A high-accuracy cuttings return monitoring device was developed to monitor and evaluate the hole cleanliness of horizontal wells, and to monitor the cutting return accurately. The compensation method for missing cuttings during a dumping period and the calculation method of the actual cuttings return volume were established for the monitoring device in two operation modes with the cuttings return data and the real-time data of engineering logging. A quantitative monitoring and evaluation technology for the hole cleaning of horizontal wells was developed depending on the results of the cuttings return rate and sloughing monitoring. This technology was applied in multiple horizontal shale gas wells in the Luzhou Block, Southern Sichuan, which enabled the real-time accurate monitoring of cuttings return volume and return rate in monitored well sections. It gave many early warnings regarding abnormal hole cleanliness, ensuring smooth drilling in horizontal sections. The proposed quantitative monitoring and evaluation technology for hole cleaning of horizontal wells provided a new technical means for monitoring the hole cleanliness of horizontal wells and preventing sticking and other complex risks.

中国石油天然气集团有限公司科学研究与技术开发项目“水平井优质高效钻完井技术研究”（编号：2021DJ42）课题2“水平井降阻、清岩、智能建模与协同控制方法”及课题4“水平段长2500米以上的致密/页岩气水平井‘一趟钻’技术研究”部分研究内容

https://doi.org/10.11911/syztjs.2022083